donal



(No Model.)

, R. U. DONAL.

WELL BORING MACHINERY.

H llll|\ I'llllll'lll' I H I o :3 7 ail/6 all Patented Apr 27, 1886.

N. PETERS. Phnwunw m m. Wzshington, n c.

UNITED STATES PATENT OFFICE.

ROBERT U. DONAL, OF EMMET, ARKANSAS, ASSIGNOR OF ONEFOURTH TO H. STAINTON, OF SAME PLACE.

WELL-BORING MACHINERY.

SPECIFICATION forming part of Letters Patent No. 340,562, dated April 2'7, 1886.

Application filed January 29, 1586. Serial No. 190,151. (No model.)

To aZZ whom it may concern:

Be it known that 1, ROBERT U. DONAL, a citizen of the United States, residing at Emmet,-in the county of Nevada and State of Arkansas, have invented certain new and useful Improvements in \Vell-Boring Machinery, consisting of drill, trimmer, and sand pump combined; and I do declare the following to be a full, clear, and exact description of the to invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a I 5 part of this specification.

My invention has relation to well-angers; and it consists of a drill, trimmer, and sandpump, as hereinafter fully described and set forth.

The drill can be used without the sandpump, or the sand-pump can be used without the drill, or they may be used eonjointly.

In the accompanying drawings, Figure 1 is a view showing my invention ready for use. Fig. 2 is a sectional view of the same, cut on the line :0 00. Fig. 3 is aview of my invention when opened to empty the sand. Fig. 4 is a top plan view of the top plate. Fig. 5 is a top view of the bottom plate. Fig. 6 is a view of the lower face of the bottom plate. Fig. 7 is a View of the dri1l-rod.

Similar figures refer to similar parts throughout the several views.

My invention is described as follows: By

means of the two uprightpieces 1 and 2 I secure together the top plate, 3, and bottom plate, 4, thus making a skeleton frame, to which are secured the two halfcylindrical doors 5 and 6. The door 5 has one of its edges securely bolted 0 or riveted to the upright l by means of the bolts or rivets 7, and the door 6 has one of its sides bolted or riveted to the upright 2 by means of bolts or rivets 8. From either end of the uprights 1 and 2 project threaded necks 9, 011 which are screwed nuts 10, said nuts holding said top and bottom plates in position. The said threaded necks are smaller than the uprights proper, and thus make shoulders on .the uprights 1 and 2,'against which the perforated plates 3 and 4 rest. The said uprights are pivoted in perforations in said plates, and only one edge of the said halfcylindrical doors being bolted to said uprights enables the same to open and shut, and when so closed they form a perfect hollow e ylindei 5 5 The free edges of said half-cylindrical doors are provided with perforated laps or tongues 11, said laps fitting into corresponding depressions, 12, in the opposite side, and the edges of the said doors along the line of their junction are flush. hen thesaid half-cylindrical doors are shut, they are held in position by means of serew-bolts passing through said laps and screwing into female screws in said uprights. The heads of said screw-bolts 6 5 are also countersunk. These doors 5 and 6 may be held closed by two screw-bolts, one at the top and one at the bottom of each door.

In the top p1at-e,3,Iprovide perforations 13, through which the air and water may be forced as fast as the solid material enters the body of the pump through the openings in the bottom. I make as many of these perforations as maybe found necessary.

On the lower side of the bottom plate, 4, I secure two trimmers, 14 and 15, said trimmers being secured to said plate by rivets, or in any secure manner, each trimmer being curved to correspond to the curve of the periphery of the said plate, and when fitted to the same makes a smooth joint. On the top face of the said perforated bottom plate, 4, I rivet self-closing valves, composed of rubber cloth, 16, or other suitable material, and having secured to the loose sides two plates of metal, 17 and 1S,which fit in the lower end of said cylinder and serve to stiffen said valves.

The drill may be used without the pump, or the pump may be used without the drill, or they may be used conjointly. 90

In case it is desired to use the drill only, the pump is removed by unscrewing the drillpoint 20 and the top ring or rope-holder 21,

when the pn mp 111 ay be removed. Then replace the said point 20, drill-section 19, and ring or 5 rope-holder 21, and the drill is again ready for use. The ring or rope-holder 21 at the top of the combination can be removed, and as many drill-seetions as are necessary can be attached to the drill-section 19, and the ropeholder reattached, and the drill is again ready for use. I'also provide forfastening the trim- IOO niers 14 and 15 to the edge of the said bottom plate, 4, if such a course should be found necessary.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of the perforated plates 3' and 4, uprights 1 and 2, pivoted in said plates, doors 5 and 6,secu red to said uprights, and valves 17 and 18, hinged on the upper face of the perforated plate 4, substantially as shown and described.

2. In a sand-pump, as above described, the trimmers 14 and 15,secured to the lower plate, 4, substantially as shown and described.

3. In a sand-pump, as above described, the cylindrical doors 5 and 6, secured to the pivoted uprights 1 and 2, and having tongues or laps 11 and depressions 12, substantially as shown and described, and for the purposes set 20 forth. 7

4. In a combined drill, sand-pump, and

trimmer, the combination of the said pump ROBERT U. DONAL.

Q Witnesses:

J. E. DICKINSON, JAs. XV. NEILL. 

